I bought a new to me 2011 Ranger Z518 and there are 4 connections that seem to be electronic and I cant figure out what they are for. All are located on the bow and have wires ran to them. Lights maybe?? I think aftermarket but I can't find them to figure out what they are. 

Those are night fishing light sockets.  They are like the old headphones jacks except for lights.  Google phone Jack boat lights. 

Thanks Toxic. Will do. Much appreciated.